baber/WOPTO huggingface dataset:
Patent KR-19980087691-A (KR)
Title: 태양관 발전/축열시스템
IPC: F03G6/00
Filed: 1998-09-09
Abstract: 본 발명은 심야전력과 태양광으로부터 발전된 전원을 상호 연계하여 주간과 야간에 걸쳐 저렴한 비용으로 항시 양호한 축열이 가능하게 됨과 더불어 태양광으로부터 발전된 전원의 활용(예컨대, 매전(賣電) 또는 냉방시 냉매의 열교환)이 가능하도록 된 태양광 발전/축열시스템에 관한 것으로, 태양광을 수광받아 광전변환이 이루어짐과 더불어 그 태양열을 집열하기 위한 집광/집열수단과, 상기 집광/집열수단으로부터 집열된 태양열을 그 집열관(4)을 통해 순환되는 열매에 대한 매체의 압축 및 팽창처리에 의해 도입받아 축열을 위해 인가하는 매체사이클수단, 상기 매체사이클수단을 통해 공급받은 태양열을 난방수에 의해 축열하여 소정 사용시간대의 도래에 따라 축열된 난방수를 배출하는 축열수단, 상기 집광/집열수단에 의해 생성되는 태양광에 의한 전원전압을 축전가능하게 정전압변환함과 더불어 상용 AC전원으로 부터의 AC전원전압을 DC변환하는 선택적인 전력변환처리를 수행하는 전력변환수단, 상기 전력변환수단을 통해 전력변환된 전원전압을 축전하는 축전수단, 상기 집광/집열수단의 집열처리에 대한 집열불능시간대와 집열부족시간대에 보조적으로 동작되어 상기 전력변환수단을 통한 상용 AC전원으로 부터의 전원전압이나 태양광으로부터 생성된 전원전압에 의해 상기 축열수단내의 난방수를 가열하도록 전원제어하는 전원제어수단, 상기 집광/집열수단의 집광/집열처리와 태양광에 의한 전원전압 또는 상용 AC전원으로 부터의 전원전압에 대한 전력변환수단의 선택적 전력변환처리여부를 판정하기 위한 날짜와 시간대를 계수하는 캘린더계수수단, 상기 캘린더계수수단에 의해 계수된 날짜 및 시간대의 계수치와 실외온도 및 상기 축열수단내의 수온의 감지치에 기초하여 집광/집열의 가능시간대와 불능시간대 및 부족시간대에 따라, 상기 매체 사이클수단의 축열공급을 위한 순환처리와 상기 전력변환수단의 선택적인 전력변환처리 및 상기 전원제어수단의 축열수단내에 저장된 저장수의 가열처리를 위한 전원제어처리상태를 총괄적으로 제어하는 제어수단을 포함하여 구성된 것을 특징으로 한다.
Patent KR-20000021366-A (KR)
Title: Power reset circuit of semiconductor device
Inventor: HA CHANG WAN
IPC: H03K17/22
Filed: 1998-09-28
Abstract: PURPOSE: A power reset circuit of a semiconductor device is provided to generate a power reset control signal, by using a power supply voltage charging circuit after power reset pulse is generated, and to prevent current pass to a ground terminal from a power supply terminal. CONSTITUTION: A power reset circuit of a semiconductor device comprises: a power supply voltage charging circuit for generating power reset control voltage, as power supply voltage is increased from low voltage to high voltage; a power reset pulse generating circuit for generating reset pulse according to the generated power reset control voltage, when the power supply voltage is increased to the high voltage; a first operator for being operated by the generated control signal, and for controlling current pass generating the power reset pulse as the power supply voltage is increase to the high voltage; a second operator for beng operated by an output signal of the first operator, and for controlling output voltage of the first operator, as the power supply voltage is increased to the high voltage; a third operator for being operated by the generated signal from the charging signal, and for controlling the current pass generating the power reset pulse, according to an output signal of the second operator; and a pulse generator for generating the power reset pulse according to the control signal from the charging circuit and the output signal of the third operator.
Patent KR-20000021602-A (KR)
Title: Method for displaying total guide picture on broadcasting satellite receiver
Inventor: HONG SEUNG HOON
IPC: H04N7/20
Filed: 1998-09-30
Abstract: PURPOSE: A method is provided to output total guide picture of programs, so that a viewer can see detail information on the programs, in a broadcasting satellite receiver. CONSTITUTION: A method for displaying total guide picture on a broadcasting satellite receiver comprises the steps of: changing guide picture for outputting information of existing programs into total guide picture, to see detail information on a program with one time selection; simultaneously outputting information of general programs and information on detail programs; displaying the general program information and the detail information of the one program; and outputting the detail information in the picture, when selecting a desiring program in the picture.
Patent KR-20000031143-A (KR)
Title: Method for driving plasma display panel
Inventor: LEE JAE HYUK
IPC: G09G3/294
Filed: 1998-11-03
Abstract: PURPOSE: A method for driving a plasma display panel is provided to operate stably a plasma display panel by applying stably a scan pulse to Y electrodes. CONSTITUTION: A method for driving a plasma display panel comprises the following steps. A first pulse is applied to a group of Y electrodes of a first block at periods of odd numbers of a predetermined scan pulse in order to generate a discharge between the Y electrodes of a part area corresponding to the first block and X electrodes. The first pulse is applied to the group of Y electrodes of a second block at periods of even numbers of the scan pulse in order to generate the discharge between the Y electrodes of a part area corresponding to the second block and X electrodes. A second pulse is applied to the Y electrode lines in order to the discharge between the Y electrodes and Z electrodes.
Patent KR-20000032408-A (KR)
Title: Heat exchanger
Inventor: SHIN SEUNG HAK
IPC: F28D1/00
Filed: 1998-11-14
Abstract: PURPOSE: A heat exchanger is provided to restrain the degradation of heat exchanging efficiency and to improve durability by integrally forming a tank part flowing in and flowing out heat medium. CONSTITUTION: A first tank part(9) has a first heat header(12) and a second heat header(13) having settlement sills(12b,13b) to settle the end portions of tanks(15,16) on their both ends. Vertical portions(12d,13d) respectively curved from the settlement sills vertically are formed. Simultaneously, on both peripherals of a bridge(14), settlement sills(12c,13c) and vertical portions(12e,13e) corresponding to the settlement sills and the vertical portions are formed. And the heat insulating holes(14a) that are insulating parts are formed lengthwise of the bridge. Herein, the heat conducted via respective headers is cut off. On the first and second tanks(15,16), legs(15a,15b,16a,16b) are formed to be vertical and to be corresponding to the vertical portions of the first and second row headers(12,13). The legs are combined to by close to each other. Thereby the combining force of the header(11) and the tanks(15,16) is strengthened.
Patent KR-20000039999-A (KR)
Title: Device and method for improving ventilation of sintering machine
Inventor: BTON SANG GEUN
IPC: F27B21/08
Filed: 1998-12-16
Abstract: PURPOSE: A device and a method for improving ventilation of a sintering machine are provided to reduce the time for sintering by making uniform and prompt an airflow in a sintering bed, to make uniform sintering state, to control mutually according to working condition and the quality of sinter, and to make easy the removal of attached material and the installation and separation of a sintering machine. CONSTITUTION: A sintering machine(6) is moved if the installed height of a ventilation bar/the thickness of a compound material layer*100 is within a value X of 40%. If the value X is exceeding 42% or less than 38%, a horizontally moving cylinder moves forward until the cylinder touches an extra position limit switch of the ventilation bar. While the ventilation bar is posed in an extra place, a cylinder for adjusting height moves forward or backward to adjust the depth of the ventilation bar to 40%. After adjusting height, the horizontally moving cylinder moves forward until an insertion position limit is touched. Time tracking is performed by a timer if the sintering machine is started. The horizontally moving cylinder moves forward certain length to remove attached materials.
Patent KR-19990066856-A (KR)
Title: 액정표시장치_
IPC: G02F1/13
Filed: 1998-12-19
Abstract: (과제) 
     액정표시장치 내에 필요한 공간을 삭감함으로써 케이스를 소형화함과 동시에, 조립효율을 향상시킨 액정표시장치를 제공한다. 
     (해결수단) 
     본 발명의 액정표시장치는, 액정표시패널과, 그 액정표시패널에 광을 공급하는 광원과, 액정표시패널과 전기적으로 접속됨과 동시에 광원이 고정되고, 액정표시패널을 구동하기 위한 액정표시패널용 구동회로 및 광원을 구동하기 위한 광원용 구동회로가 형성된 인쇄배선판과, 액정표시패널, 광원 및 인쇄배선판을 수용하는 케이스를 구비하는 것을 특징으로 한다.
Patent KR-20000042652-A (KR)
Title: Photocatalyst for water decomposition and its manufacture
Inventor: SUNG JOON YONG
IPC: B01J23/02
Filed: 1998-12-26
Abstract: PURPOSE: A photocatalyst for water decomposition comprising metal carrying Sr2Nb2O7 and their manufacturing process are provided which give a photocatalyst excellent in water decomposition activity. CONSTITUTION: A photocatalyst of the following formula : M(x)/sr2Nb2O7 having excellent hydrogen formation capacity is described. In formula, M denotes a metal, which is carried to Sr2Nb2O7 and may be preferably Ni, Pt, Bi, Cs, or Ru, x is 0.01 to 3.0% as a percent by weight of a carrying metal to a carrier. The process comprises mixing Sr2Nb2O7 with Nb2O5 in a mole ratio of 2 : 1 and calcining at 1,000 to 1,200°C for 5 to 10 hr.
Patent KR-20000044742-A (KR)
Title: Apparatus for determining video signal format
Inventor: CHO MIN SU
IPC: H04N5/46
Filed: 1998-12-30
Abstract: PURPOSE: An apparatus for determining a video signal format is provided to determine rapidly a format of a video signal by using a logic circuit. CONSTITUTION: An apparatus for determining a video signal format comprises a clock generation portion(130), a horizontal synchronous signal period detection portion(110), a vertical synchronous signal period detection portion(120), a field determination portion(140), and a mode determination table(150). The clock generation portion generates a predetermined clock. The horizontal synchronous signal period detection portion detects the number of clock pulse generated during one horizontal synchronous pulse section. The vertical synchronous signal period detection portion detects the number of horizontal synchronous pulse generated during one vertical synchronous pulse section. The field determination portion determines whether input video signals are an odd number, or an even number and generates a field determination signal. The mode determination table stores the clock pulse number and the horizontal synchronous pulse number as a table and determines a format of the input video signal according to the stored table.
Patent KR-20000044772-A (KR)
Title: Apparatus for controlling remote signal direction responses
Inventor: LEE MIN SEOP
IPC: H04Q9/00
Filed: 1998-12-30
Abstract: PURPOSE: An apparatus for controlling remote signal direction responses is provided to receive remote signals generated from various directions, and to rotatively move electronic instruments to a received direction by searching the received direction. CONSTITUTION: An apparatus for controlling remote signal direction responses measures directions of controlling signals outputted from a remote controller. The apparatus comprises a light receiver, an analog to digital(A/D) converter(410), a comparator(420), a decoder(450), and a direction mover(350). The light receiver receives operation controlling signals generated from the remote controller. The light receiver comprises a light receiving body and many light receiving elements(320). The light receiving body is composed as a hemisphere shape. The light receiving elements are arranged on the light receiving body at regular intervals. Each of the light receiving elements has an identification(ID) code. The A/D converter sequentially selects each of the light receiving elements. The A/D converter converts voltage values corresponding to the controlling signals received by the selected light receiving elements into digital values. The comparator selects a light receiving element having a highest digital value. The decoder decodes a controlling signal received in the light receiving element having the highest digital value. The direction mover controls operations of electronic instruments according to data supplied by the decoder. The direction mover moves the electronic instruments to a direction to which the light receiving element having the highest digital value is arranged.
Patent KR-19990028858-A (KR)
IPC: C11D17/06
Filed: 1996-09-06
Abstract: Proposed is a new method for preparing granulated anhydrous and non-dusting sugar surfactants of high bulk density, wherein aqueous pastes of a) alkyl- and/or alkenyloligoglycosides and/or b) fatty acid-N-alkylpolyhydroxyalkyl amides with a solids content of at least 20 wt % are simultaneously pelletized and dried to a residual water content of less than 2 wt % in a horizontal thin-film evaporator with rotating components, a temperature gradient being applied to the thin-film evaporator from product input to product discharge and a gas treatment being effected with counterflow air.
Patent KR-19990028945-A (KR)
IPC: F16K3/28
Filed: 1996-07-11
Abstract: A valve member (40) includes a wedge shaped obturator (42) having sealing regions (46, 48). Below dashed lines A1-A1/A2-A2, the obturator comprises a part-circular-cylindrical outer surface with the axis of the cylinder extending perpendicularly to a stem (12) and inclined planes (43, 44) being tangential to the outer surface. A butt seal region (50) of the obturator includes a central region (52) which extends parallel to the axis of the cylindrical surface. Adjoining regions (54, 56, 58, 60) extend from the region (52) across the cylindrical surface, obliquely to the axis thereof, so as to meet the sealing regions (46, 48). Thus, faces of the wedge above lines A1-A1/A2-A2, blend into the cylindrical surface below the line so that there is a smooth transition between sealing regions (46, 48) and the butt seal region (50). In another embodiment described, an obturator includes two part-circular-conical surfaces spaced apart by an arcuate surface instead of the part-circular-cylindrical outer surface of valve member (40).
Patent KR-19990063997-A (KR)
IPC: B22D11/04
Filed: 1996-10-03
Abstract: A wall of a four-piece mold is made by machining cooling channels into one side of a steel backup member. The cooling channels are filled with wax which is then covered with conductive paint or tape. A layer of copper is now electroplated onto the side of the backup member with the cooling channels, and nickel and chromium are plated over the copper in succession. Upon completion of plating, the wax is removed from the cooling channels by melting the wax. Alternatively to machining the cooling channels into the backup member, strips of plastic are adhesively secured to the backup member prior to plating. The plastic strips, which have widths and heights equal to the desired widths and depths of the cooling channels, are placed on the backup member at the intended locations of the cooling channels. Copper is plated onto the backup member to the height of the strips which are then removed to form the cooling channels. The cooling channels are filled with wax and the process of making the mold wall is then completed as before.
Patent KR-19990067682-A (KR)
Title: 권취형기어 작동 장치 및 방법
IPC: F16H9/00
Filed: 1997-05-27
Abstract: 본 발명은 그 전동비가 조정될 수 있는 구동측부 및 피동측부를 가진 권취형기어에 관한 것이다. 권취수단은, 미끄럼거동이 영향받을 수 있는 구동측과 피동측 사이의 기계적 작동연결을 형성하는 역할을 하고, 거기에 있어 권취수단의 미끄럼에 영향을 줄 수 있는 영향수단이 배치되어 있다. 본 발명의 핵심부분은, 두개 이상의 센서장치가 설치되고, 그들 센서는 권취요소의 영역에 구동측과 피동측 사이에 배치되는데 있다. 그러면 센서의 신호는 본 발명에 따라 권취요소의 미끄럼에 영향을 주기 위해 영향수단에 공급된다. 본 발명에 따라 배치된 센서장치에 의해 실제의 미끄럼을 대단히 정확히 파악하는 것과 그 미끄럼을 미끄럼조정을 위해 호출하는 것이 간단한 방식으로 해결될 수 있다.
Patent KR-19990076796-A (KR)
Title: 연료분사장치
IPC: F02M45/08
Filed: 1997-07-02
Abstract: 연료분사장치에 관한 것으로서 릴리스 배관(30)을 제어하는 전기적으로 조정되는 밸브(24)가 고압공급을 결정하며 밸브의 닫힘으로 시스템의 단계가 결정된다. 
     전분사와 주분사로 이루어지는 2단계 분사과정의 수행과 전기제어 밸브(24)를 간단하게 조정하기 위해 펌프 피스톤(1)을 구동하는 캠(5)을 (P)영역에 배치하였으며, 펌프 피스톤은 이 영역에서 전분사와 주분사 사이의 분사 중지를 위해 도달한 위치에 정지 또는 후진 이동한다.
Patent KR-19990081913-A (KR)
IPC: C07C227/28
Filed: 1997-01-21
Abstract: PCT No. PCT/GB97/00177 Sec. 371 Date Oct. 7, 1998 Sec. 102(e) Date Oct. 7, 1998 PCT Filed Jan. 21, 1997 PCT Pub. No. WO97/27170 PCT Pub. Date Jul. 31, 1997An indirect acidulation process for producing glutamic acid from an aqueous feed containing a glutamate resulting from fermentation includes: a) contacting an aqueous feed stream at an elevated temperature with a weak acid cation exchanger (WACE) which is at least partially in its acid form, whereby a part of the cations in the solution is taken up by the cation exchanger and protons are introduced into the solution; b) contacting a second aqueous feed containing glutamate and cations at an elevated temperature with a strong acid cation exchanger (SACE) that is obtained from a subsequent step and carries cationic glutamate, whereby the cationic glutamate is transferred into the solution and most of the cations in the second aqueous feed are taken up by the SACE; c) crystallizing glutamic acid from the effluent of step (b); d) contacting the mother liquor of step (c) with the SACE which is at least partially in its acid form whereby cationic glutamate is bound; e) utilizing the SACE obtained in step (d) in step (b); f) regenerating the SACE from step (b) to its at least partially acid form by a solution of a strong acid and utilizing the SACE in its at least partially acid form in step (d) while forming an effluent containing an acidic solution of salts, comprising cations bound to the cation exchanger in step (b) and the anions of the strong acid; g) regenerating the WACE from step (a) to its at least partially acid form by the effluent from step (f) and utilizing the WACE in its at least partially acid form in step (a) while forming an effluent containing a solution of salts, comprising cations bound to the cation exchangers in steps (a) and (b) and the anions of the strong acid; and h) directing the salt solution obtained as the effluent of step (g) for commercial use.
Patent KR-19990082614-A (KR)
Title: 청소 헤드 및 이와 함께 사용하기 위한 아답터
IPC: A47L11/30
Filed: 1997-02-13
Abstract: 보통 진공 청소기의 방식으로 헤드가 건식 흡입 청소에 사용될 수 있도록 액체를 도포하고 제거함으로써 상대적으로 단단하고 비흡수성인 마루 표면을 청소하도록 구성된 종류의 청소 헤드(10)를 구성하기 위하여, 클립 온 아답터/커버 부재(50)가 제공된다.  아답터/커버 부재(50)는 청소 헤드의 흡입 구멍(37)과 일치하고 헤드 상에 제공된 스퀴지 블레이드(35)를 둘러싸도록 유입 슬롯을 한정하기 위하여 형성된다.  부가적으로, 아답터/커버 부재(50)는 청소 헤드 내의 도포기 조립체(40) 위에 연장하고 그를 둘러싸는 바닥벽(51)을 포함하여, 아답터/커버 부재의 부재 시에, 청소액은 청소할 표면에 도포될 수 있다.
Patent KR-20000005313-A (KR)
Title: Industrial syringe
Inventor: DANG NGUYEN THAI
IPC: B05C17/005
Filed: 1997-04-03
Abstract: PURPOSE: A syringe is disclosed having an elongated cylindrical tube open at both a first and second end. CONSTITUTION: A first open end of the elongated cylindrical tube (12) provides both a filling and dispensing opening (16) for the contents of the tube. A cylindrical piston (26) is slidably mounted within the tube and has a first axial end facing the fill and dispensing opening and a second axial end facing the opposite or second opening. The piston has an outside diameter slightly smaller than the inside diameter of the tube so that an annular clearance space (36) is formed between the tube and the piston. A wiper (38) extends radially outwardly from the second end of the piston and frictionally engages the cylindrical internal surface of the tube. A novel tamper evident cap (42) is also disclosed for closing the second end of the tube.
Patent KR-20000005347-A (KR)
Title: Method sticking saw tooth in blank and device thereof
Inventor: GERING HOLGER
IPC: B23K31/02
Filed: 1997-03-27
Abstract: PURPOSE: A device and a method are provided to reduce the allowable error to stick a saw tooth in a saw blade, to easily stick the saw tooth in the saw blade by reducing the time required. CONSTITUTION: The device has:a saw tooth inserting device(11) having a device to decide the width of each single tooth(33:41); a receiving device(12) for saw blade blanks(31:47) having a device to decide the width of the saw blanks(31:47); a saw blade inserting device(11); a valuing device(14) for data obtained from the receiving device(12) of saw blanks(31:47); a device controlled by an analyzing device(14) to move the saw blanks(31:47). Therefore the accuracy is improved by arranging each single saw tooth(33:41) to a certain position from the saw blade blanks(31:47) by using data valued by the valuing device(14).
Patent KR-20000010526-A (KR)
Title: Monolithic multilayer piezo actuator and production process thereof
Inventor: CRAMER DIETER
IPC: H01L41/083
Filed: 1997-04-03
Abstract: PURPOSE: A monolithic piezo actuator with multilayer construction with a high aspect ratio of more than two is provided. CONSTITUTION: The actuator is built of several smaller stacks in a multilayer construction. The stacks is prepared from printing a layer composed of electrode material on one side of piezoelectric ceramic green film, forming a stack of layers such that the ceramic green films and electrode layers are sequentially alternated, and subsequently depositing a plurality of stacks. By sintering stacks together, a monolithic piezo actuator is obtained which has improved mechanical strength with good piezoelectric properties.
Patent KR-20000065048-A (KR)
Title: 헤테로고리에의해치환된벤젠유도체및제초제
IPC: A01N43/80
Filed: 1997-02-10
Abstract: 본 발명은 식중, R 1 은 C 1∼6 알킬을 나타내고, R 2 는 할로겐, C 1∼6 알킬술포닐 등을 나타내며, R 3 및 R 4 는 각각 독립적으로 C 1∼6 알킬 또는 C 1∼6 할로알킬을 나타내고, R 은 수소 또는 C 1∼6 알킬을 나타내는, 하기 화학식 I 에 의해 나타내는 화합물 및 이의 염이다.     화학식 I 에 의해 나타내는 화합물을 함유하는 조성물은 옥수수 및 밀에 대해 선택성을 갖는 제초제이다. 
     [화학식 I]
Patent KR-20000065160-A (KR)
IPC: C23C26/00
Filed: 1997-04-21
Abstract: There is provided a surface alloyed component which comprises a base alloy with a diffusion barrier layer enriched in silicon and chromium being provided adjacent thereto. An enrichment pool layer is created adjacent said diffusion barrier and contains silicon and chromium and optionally titanium or aluminum. A reactive gas treatment may be used to generate a replenishable protective scale on the outermost surface of said component.
Patent KR-20000022197-A (KR)
Title: Differential hot wire air gauge
Inventor: THOMAS TIMOTHY N
IPC: G01F1/69
Filed: 1998-04-10
Abstract: PURPOSE: A differential hot wire air gauge is provided for accurately measuring small distances using flow sensing in the photo lithograph for a semi conductive production. CONSTITUTION: A device and method for accurately measuring small distances using gas flow sensing. The gas flow sensing system for control a distance between probe and target surface, includes the two hot wires situated on two independent gas stream. The device has both a measurement and a reference gaging conduit, each including a hot-wire anemometer. The differential sensing achieved by use of the reference filters out changes in the gas property. The matched physical configuration of the reference and the measurement gas flow paths minimizes sensitivity of the system to acoustic disturbances. High-mass high thermal conductivity support needles significantly improve the response time for the hot-wires. A sintered metal diffuser in the gas flow path reduces the noise originating in the gas supply
Patent KR-20000051224-A (KR)
Inventor: SHIN DONG WON
IPC: E05B49/00
Filed: 1999-01-15
Abstract: PURPOSE: An apparatus for releasing a lock by a non-manipulation key is provided to resolve inconvenience of manipulating a key to open a lock and automatically release the locked state of the lock by just approaching the lock carrying the key. CONSTITUTION: An apparatus for releasing a lock by a non-manipulation key includes a latch(10), a timer oscillator(20), a wireless code timer oscillator(20), a wireless code transmitter(30), first and second switches and a variable resistance, so that if a user carrying the key approaches the lock including a wireless code receiver(1), a code comparator(2), a code changing circuit(3), a code memory circuit(4), and an electric lock(5). the lock automatically realizes the code to be opened or closed without manipulating the keys.
Patent KR-20000051556-A (KR)
Inventor: KANG NAM CHUL
IPC: A23B7/04
Filed: 1999-01-23
Abstract: PURPOSE: An apparatus is provided, for displaying the matured extent of Kimchi in a Kimchi refrigerator. CONSTITUTION: A apparatus comprises an operation part (100) which inputs the kind of Kimchi, the extent of maturation and the maturation speed; a control part (120) which drives a compressor (132) or a heater (142) selectively for the pre-set period according to the input maturation course, and outputs the control signal for display the maturation progressed time; and a display part (150) which displays the maturation progressed time in multi-stage according to the control signal. The display part (150) comprises a plurality of lamps, and increases the number of lighted lamps or lights certain lamp according to the maturation extent.
Patent KR-19990072329-A (KR)
Title: 기억매체카트리지
IPC: G11B23/03
Filed: 1999-01-29
Abstract: 카트리지 케이스체와 개폐비와의 사이에 생기는 극간을 가급적 작게하여 먼지대책을 강구한다. 
     광디스크의 정보기록면에 대응하는 카트리지 케이스체(12)의 한편의 평면부에 개구창(16)을 설치하는 동시에, 이 평면부의 평면에 따라서 개폐비(17)를 회동시킨다.